First Committee of the General Assembly
The First Committee of the General Assembly is also known as the Disarmament and International Security Committee. As it is a General Assembly committee, each of the 193 UN member states has one vote in the committee. It mainly deals with maintaining peace and security by promoting disarmament. To achieve this aim, the committee discusses topics such as nuclear non-proliferation, conventional weapons, terrorism and cyber security.
More information can be found on https://www.un.org/en/ga/first